断药后穿孔塑料导爆管传爆规律试验研究  

Experimental Study for Detonation Law of Perforation on Nonel Tube After Explosive Faults

作　　者：杨再高[1] 陈星明[1] 肖定军[1] 胡文义 

机构地区：[1]西南科技大学环境与资源学院,四川绵阳市621010

出　　处：《矿业研究与开发》2015年第11期49-52,共4页Mining Research and Development

基　　金：西南科技大学研究生创新基金项目(14ycx049)

摘　　要：为研究断药结束后爆轰波不稳定传播区域穿孔对导爆管传爆可靠性的影响,运用高速摄影技术对存在15cm断药与不同规格穿孔的导爆管进行试验。对试验结果进行分析得出以下结论:仅存在15cm断药的导爆管,从断药结束至恢复正常传爆距离约为9cm;孔对导爆管传爆速度的影响不仅取决于孔径、孔数量以及孔的密集程度,与孔前的传爆速度也密切相关;对于只考虑单一因素,孔径增大、孔数量增多、孔越密集、孔前传爆速度越低则爆速下降相对越明显。For studying the influence of propagation in the un- stable spread area of detonation wave on the nonel tube after explosive faults, high-speed photography was used to re- search the nonel tubes with 15 m of explosive faults and dif- ferent perforations. The test results were analyzed and ob- tained the conclusions as follows. Firstly, propagation dis- tance of nonel tube, only existing with 15 cm of explosive faults, was about 9 cm from the end of explosive faults to normal detonation. Secondly, the influence of holes on the propagation speed of nonel tube not only depended on the ap- erture, holes number and intensity, but also closely related to the velocity before perforation. Finally, for considering a single factor, detonation velocity decreased more obviously with the increase of aperture and holes number, as well as the lower velocity.

关 键 词：塑料导爆管 断药 穿孔 爆轰波 传爆规律 

分 类 号：TD235.12[矿业工程—矿井建设]